Flashing F AND D No Water Flow
- Turn the boiler off and bleed/let out the air of your radiators. Ensure the boiler pressure is still at 1 to 1.5 BAR and turn the boiler back on.
- Your central heating pump may not be running. Gently touch it and if it's working properly, there should be a gentle vibration and it should also be warm
- If you believe the central heating pump is NOT running, contact your installer.
- If you believe the central heating pump is running, please contact us quoting error code FA as this will require a visit from an engineer.
View our video on how to top up your boiler pressure: